Mokulēia Weather in September
Average highs run from 85°F on September 1 to 84°F on September 30, and lows from 70°F to 69°F. Normal precipitation for the month is 1.31 in over about 12 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 85°F
- Average low
- 70°F
- Precipitation
- 1.31 in
- Record high
- 90°FSep 30, 2003
- Record low
- 60°FSep 15, 2000
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.7
- Daylight
- 12 h 33 min to 11 h 57 min
- Cloud cover
- 44%
- Humidity
- 74%
- Dew point
- 70°F
- Wind
- 14.1 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 85°F | 70°F | 89°F 2011 | 66°F 1998 | 40% |
| Sep 2 | 85°F | 70°F | 87°F 1997 | 65°F 2002 | 40% |
| Sep 3 | 85°F | 70°F | 87°F 1997 | 65°F 2001 | 40% |
| Sep 4 | 85°F | 70°F | 87°F 1997 | 65°F 2006 | 41% |
| Sep 5 | 85°F | 70°F | 86°F 2006 | 64°F 1998 | 41% |
| Sep 6 | 85°F | 70°F | 85°F 1997 | 64°F 1999 | 41% |
| Sep 7 | 85°F | 70°F | 87°F 2004 | 65°F 1999 | 41% |
| Sep 8 | 85°F | 70°F | 87°F 2004 | 64°F 1999 | 41% |
| Sep 9 | 85°F | 70°F | 85°F 1998 | 62°F 2011 | 40% |
| Sep 10 | 85°F | 70°F | 85°F 1998 | 65°F 1997 | 40% |
| Sep 11 | 85°F | 70°F | 87°F 2001 | 64°F 1999 | 40% |
| Sep 12 | 85°F | 70°F | 87°F 2001 | 65°F 1999 | 40% |
| Sep 13 | 85°F | 70°F | 86°F 1997 | 65°F 1998 | 40% |
| Sep 14 | 85°F | 70°F | 87°F 1997 | 64°F 1999 | 40% |
| Sep 15 | 85°F | 70°F | 88°F 1997 | 60°F 2000 | 40% |
| Sep 16 | 85°F | 70°F | 88°F 1997 | 63°F 1999 | 40% |
| Sep 17 | 85°F | 70°F | 87°F 2000 | 63°F 1999 | 40% |
| Sep 18 | 85°F | 70°F | 84°F 1997 | 64°F 1999 | 40% |
| Sep 19 | 85°F | 70°F | 86°F 2013 | 64°F 1998 | 39% |
| Sep 20 | 85°F | 70°F | 85°F 2000 | 64°F 1998 | 39% |
| Sep 21 | 85°F | 70°F | 85°F 1997 | 62°F 2000 | 39% |
| Sep 22 | 85°F | 70°F | 87°F 2000 | 62°F 2000 | 39% |
| Sep 23 | 85°F | 70°F | 87°F 1997 | 64°F 2000 | 39% |
| Sep 24 | 85°F | 70°F | 87°F 1997 | 63°F 1998 | 39% |
| Sep 25 | 84°F | 70°F | 88°F 2005 | 64°F 1998 | 39% |
| Sep 26 | 84°F | 70°F | 89°F 2005 | 62°F 2011 | 39% |
| Sep 27 | 84°F | 69°F | 88°F 2003 | 63°F 1999 | 39% |
| Sep 28 | 84°F | 69°F | 86°F 2002 | 63°F 1999 | 39% |
| Sep 29 | 84°F | 69°F | 86°F 2003 | 63°F 1999 | 38% |
| Sep 30 | 84°F | 69°F | 90°F 2003 | 64°F 1998 | 38% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (HST).
- September 1
- sunrise 6:16 AM, sunset 6:49 PM
- September 30
- sunrise 6:24 AM, sunset 6:21 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00518055 (Poamoho Exp Fm 855.2), public domain. Records: NOAA GHCN-Daily, station USC00518838, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.